The present invention relates to telephone call processing. In one embodiment, a call processing system receives from a caller a first call for a user, the first call including call signaling information. The call processing system determines whether the call signaling information includes caller identification...http://www.google.es/patents/US7688958?utm_source=gb-gplus-sharePatente US7688958 - Methods and apparatus for providing expanded telecommunications service
Methods and apparatus for providing expanded telecommunications service
